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Understanding Chassis Cluster Dual Fabric Links

You can connect two fabric links between each device in a cluster, which provides a redundant fabric link between the members of a cluster. Having two fabric links helps to avoid a possible single point of failure.

When you use dual fabric links, the RTOs and probes are sent on one link and the fabric-forwarded and flow-forwarded packets are sent on the other link. If one fabric link fails, the other fabric link handles the RTOs and probes, as well as the data forwarding. The system selects the physical interface with the lowest slot, PIC, or port number on each node for the RTOs and probes.

For all SRX Series and J Series devices, you can connect two fabric links between the two devices, effectively reducing the chance of control link failure.

In most SRX Series devices in a chassis cluster, you can configure any pair of Gigabit Ethernet interfaces or any pair of 10-Gigabit interfaces to serve as the fabric between nodes. Interfaces on SRX210 devices are Fast Ethernet or Gigabit Ethernet (the paired interfaces must be of a similar type) and all interfaces on SRX100 devices are Fast Ethernet interfaces.

In a J Series chassis cluster, you can configure any pair of Gigabit Ethernet interfaces to serve as the fabric between nodes.

 

Related Documentation

 

Published: 2013-11-11

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